NixOS-Configuration/lnf/configuration.nix

# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:

{
  imports = [
    # Include the results of the hardware scan.
    ./hardware-configuration.nix
  ];

  # Bootloader.
  boot.loader.grub.enable = true;
  boot.loader.grub.device = "/dev/vda";
  boot.loader.grub.useOSProber = true;

  networking.hostName = "nixos-lnf"; # Define your hostname.
  networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

  # Enable networking
  networking.networkmanager.enable = true;

  # Set your time zone.
  time.timeZone = "Europe/Vienna";

  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.UTF-8";

  i18n.extraLocaleSettings = {
    LC_ADDRESS = "de_AT.UTF-8";
    LC_IDENTIFICATION = "de_AT.UTF-8";
    LC_MEASUREMENT = "de_AT.UTF-8";
    LC_MONETARY = "de_AT.UTF-8";
    LC_NAME = "de_AT.UTF-8";
    LC_NUMERIC = "de_AT.UTF-8";
    LC_PAPER = "de_AT.UTF-8";
    LC_TELEPHONE = "de_AT.UTF-8";
    LC_TIME = "de_AT.UTF-8";
  };

  # Configure keymap in X11
  services.xserver.xkb = {
    layout = "de";
    variant = "";
  };

  # Configure console keymap
  console.keyMap = "de";

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.kemp = {
    isNormalUser = true;
    description = "user";
    extraGroups = [
      "networkmanager"
      "wheel"
    ];
    packages = with pkgs; [ ];

    openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINGHadFhDCUU/ta3p1FQgpm7NExHkyHNrJbNJP6np5w9 kempinger@ins.jku.at"
    ];
  };

  users.users.root = {
    openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINGHadFhDCUU/ta3p1FQgpm7NExHkyHNrJbNJP6np5w9 kempinger@ins.jku.at"
    ];
  };

  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    #  vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
    #  wget
    git
    nil
    nixd
    wlr-randr
    kmsxx
    libinput
    vlc
  ];
  programs.firefox = {
    enable = true;
  };

  systemd.services.cage-tty1 = {
    after = [
      "network-online.target"
      #"systemd-resolved.service"
    ];
    serviceConfig = {
      Restart = "always";
      RestartSec = "1s";
    };
    environment.XKB_DEFAULT_LAYOUT = "de";
  };

  services.cage = {
    enable = true;
    user = "kemp";
    program = "${pkgs.writeScriptBin "start-multi-cage" ''
      #!/usr/bin/env bash
    
      # Get a list of all connected outputs
      # Example output: HDMI-A-1, eDP-1
      outputs=($( ${pkgs.wlr-randr}/bin/wlr-randr | grep -E "^[^ ]+" | awk '{print $1}' ))
    
      # Launch VLC on the first monitor
      # We use a subshell or background process so they run simultaneously
      if [[ -n "''${outputs[0]}" ]]; then
        # Note: To truly isolate them, some users use 'cage -d' if supported 
        # or separate Wayland sockets (WAYLAND_DISPLAY)
        WAYLAND_DISPLAY=wayland-0 cage -m last -- ${pkgs.vlc}/bin/vlc &
      fi
    
      # Launch a different app (e.g., Firefox) on the second monitor
      if [[ -n "''${outputs[1]}" ]]; then
        WAYLAND_DISPLAY=wayland-1 cage -m last -- ${pkgs.firefox}/bin/firefox &
      fi
    
      wait
    ''}/bin/start-multi-cage";
  };
  services.getty.loginProgram = "${pkgs.coreutils}/bin/true";
  # services.udev.extraRules = ''
  #   ENV{LIBINPUT_CALIBRATION_MATRIX}="-1 0 1 0 -1 1"
  #   '';
    
  services.openssh = {
    enable = true;
    settings = {
      PasswordAuthentication = false;
      KbdInteractiveAuthentication = false;
      PermitRootLogin = "prohibit-password"; # Allow root with SSH keys only
    };
  };

  nix.settings.experimental-features = [
    "nix-command"
    "flakes"
  ];
  
  networking.firewall.enable = false;

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "25.11"; # Did you read the comment?

}